For those that race their R/T, it's not just more power put to the ground, suspension tuning, and continuous experience, but also "trimming the fat" that made you quicker. Trimming too much makes for a "Flexi-Flyer", then added weight in restructure support might be needed. What are some of the things you have done to save weight, that have really made a difference? Windshield glass replaced with Lexan???
Note: Some will know what a Flexi-Fiyer is, and some will have to Google-Search for it.